| 
           Acquisitions (Details) (USD $) 
        In Thousands, unless otherwise specified  | 
        6 Months Ended | |
|---|---|---|
| 
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2012 
         | 
      |
| Business Acquisition [Line Items] | ||
| Revenue | $ 53,253 | $ 35,290 | 
| Operating income (loss) | $ 1,932 | $ (8,628) | 
| X | ||||||||||
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- Details 
          
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- Definition 
          The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition 
          The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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